Don't generate a separate library for the ghostscript plugin, but put the
code in libASImage.
It didn't work on Windows, since there were two instances of libAfterImage
storage manager (one in each DLL, each DLL being linked with static
libAfterImage library) and they don't share memory. This means that an
ASImage created in a DLL cannot be used in another DLL.
With this patch, the macro psview.C works on Linux and Windows (if
ghostscript has been installed and is in the PATH).


git-svn-id: http://root.cern.ch/svn/root/trunk@21294 27541ba8-7e3a-0410-8455-c3a389f83636